It's about as tall as Olympus Mons
(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 24,000 ells. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
It's about two-and-a-half times as tall as Maxwell Montes
In other words, the height of Maxwell Montes is 0.40 times 24,000 ells.(Ishtar Terra, Venus)
Maxwell Montes rises to a total height of 9,600 ells. Since Venus does not seem to have the kind of tectonic activity which gives rise to mountains on Earth, the origin of the Venusian mountain remains the subject of some dispute.
It's about two-and-a-half times as tall as The Challenger Deep (Marianas Trench)
In other words, 24,000 ells is 2.51620 times the height of The Challenger Deep (Marianas Trench), and the height of The Challenger Deep (Marianas Trench) is 0.397420 times that amount.(near Marianas Islands, a.k.a. Ladrones Islands, northwestern Pacific Ocean) (depth below sea level)
The Challenger Deep, at the southern end of the Marianas Trench, reaches a depth of 9,538.10 ells below sea level. There has been only one manned expedition to the bottom of Challenger Deep — a 1960 voyage that took 4 hours and 48 minutes to reach the bottom.
It's about three times as tall as a Mauna Loa
In other words, 24,000 ells is 2.9920 times the height of a Mauna Loa, and the height of a Mauna Loa is 0.33420 times that amount.(Hawaii) (Hawaiian island volcano) (total height from seafloor)
Mauna Loa, one of the five volcanoes which forms the island of Hawaii and the tallest mountain in total height in the world, rises to 8,049 ells above the seafloor. The peak of Loa is home to the approximately 6,000 sq. m (0.6 ha) Lake Waiau, one of the highest altitude lakes in the United States outside of Colorado.
It's about three times as tall as Mount Everest
In other words, 24,000 ells is 3.10 times the height of Mount Everest, and the height of Mount Everest is 0.3230 times that amount.(a.k.a. Mount Chomolungma, a.k.a. Sagarmatha, a.k.a. Mount Qomolangma, a.k.a. सगरमाथा, a.k.a. Chajamlungma, a.k.a. ཇོ་མོ་གླང་མ, a.k.a. 珠穆朗玛峰, a.k.a. Zhūmùlǎngmǎ Fēng) (Sagarmatha Zone, Nepal and Tibet, China) (to summit, excluding snow depth)
Mount Everest is 7,740 ells above sea level at its summit. The plate tectonics of the Indian subcontinent continuously alter the mountain's peak â€” raising it by 0.0035 ells and shifting it to the northeast by 0.00394 ells each year.
It's about three-tenths as long as The Panama Canal
In other words, 24,000 ells is 0.310 times the length of The Panama Canal, and the length of The Panama Canal is 3.20 times that amount.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 77,000 ells in length. Ships passing through the Canal are raised (and then lowered) 23 ells above sea level through the lock-and-dam system.
It's about one-fourth as long as The English Channel
In other words, 24,000 ells is 0.2560 times the length of The English Channel, and the length of The English Channel is 3.910 times that amount.(average width between Isle of Ushant and The Walde Lighthouse) (La Manche, Ärmelkanal, Mor Breizh, Mor Bretannek) (a.k.a. The Channel)
The English Channel measures between 93,600 ells, narrowing as it flows northeast. The world speed record for a Channel crossing by swimmer was set by Australian Trent Grimsey in 2012, with a time of 6 hours, 55 minutes.